| AC | Analog Comparators | 
| ADC | Analog-To-Digital Converter | 
| AFC | Automatic Frequency Control | 
| AHB  | AMBA Advanced High-Performance Bus | 
| AIN  | Analog Inputs | 
| AMBA  | Advanced Microcontroller Bus Architecture | 
| APB  | AMBA Advanced Peripheral Bus | 
| BOR | Brown-out Reset | 
| BUPDIV  | Backup Clock Division | 
| BW | Bandwidth | 
| CCL  | Custom Control Logic  | 
| CPUDIV  | CPU Clock Division | 
| CRC | Cyclic Redundancy Check  | 
| CTS | Clear To Send | 
| EC  | Error Correction Code | 
| EIC | External Interrupt Controller | 
| EMI  | Electro Magnetic Interference | 
| FSK  | Frequency Shift Keying | 
| GCLK  | Generic Clock Generator | 
| GPIO  | General Purpose I/O pin | 
| HVIN  | Hardware Version Identification Number | 
| IPA  | Isopropyl alcohol | 
| IrDA  | Infrared Data Association | 
| IRQ  | Interrupt Request | 
| ISM  | Industrial, Scientific and Medical | 
| LIN | Local Interconnect Network | 
| LNA  | Low Noise Amplifier | 
| LoRa | Long Range | 
| LoRaWAN® | Long Range Wide Area Network | 
| LPDIV  | Low Power Clock Division | 
| MTB | Micro Trace Buffer | 
| NMI  | Non-Maskable Interrupt | 
| OEM | Original Equipment Manufacturer | 
| PA | Power Amplifier | 
| PER  | Packet Error Rate | 
| PMN | Product Marketing Name | 
| POR | Power-on Reset | 
| PTC | Peripheral Touch Controller | 
| RF  | Radio frequency | 
| RFI_HF  | RF Input High Frequency | 
| RFO_HF  | RF Output High Frequency | 
| RSSI  | Received signal strength indication | 
| RSTC  | Reset Controller | 
| RTC | Real Time Counter | 
| RTS | Request To Send | 
| RX  | Receive/Receiver | 
| SERCOM | Serial Communication | 
| SF | Spreading Factor | 
| SiP | System-in-package | 
| SMBus  | System Management Bus | 
| SP3T  | Single Pole Three Throw | 
| SRAM | Static Random Access Memory | 
| SUPC  | Supply Controller | 
| SWD | Serial Wire Debug | 
| TCXO  | Temperature Compensated Crystal Oscillator | 
| TRX  | Transceiver | 
| TX  | Transmit/Transmitter | 
| UART  | Universal Asynchronous Receiver Transmitter | 
| UHF | Ultra-High Frequency | 
| USART  | Universal Synchronous and Asynchronous Receiver and
                                Transmitter | 
| USB | Universal Serial Bus  | 
| WDT | Watch-dog Timer | 
| WiSUN  | Wireless Smart Utility Network | 
| WMBus  | Wireless Meter Bus | 
| WO  | Waveform Outputs |